Hoisting apparatus.



No 656,067. Patented Aug. 14, I900. n. WATSON &. c. E. STEVENSON.

HOISTING APPARATUS.

, 1 A f, I m M .2 0 Z n w S T. 1. 5 1 1 2 w m m m G a z W W W A m g w. .v 3 Z i y k 6% (Application filed Jun. 3, 1900.)

(No Model.)

WITNESSES.

N0. 656,067. Patented A ug. l4, I900. B. wmsow & c. E. snavznson.

HUISTING APPARATUS.

(Applicationfiled Jan. 3, 1900.)

2 Sheets8heet 2 (No Model) WIN VE N 70175 .ZioZerZ' afion Charles E. Jfiuemsow.

WITNESSES. l i 1 ATTORNEYS UNrrE TATES- FFICF.a

CANADA.

HOISTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 656,067, dated August 14, 1900.

Application filed J'anuaryS, 1900. Serial No. 257. (No model.)

To aZZ whom it may concern.-

Be it known that we, ROBERT WATSON and CHARLES EDWARD STEVENSON, of Nanaimo, British Columbia, Canada, have invented a new and useful Improvement in Hoisting Apparatus, of which the following is a specification. I

Our invention is in the nature of an improved hoisting apparatus. designed to be used for all hoisting purposes such, for instance, as a fire-escape, as a hoist in miningshafts, or an elevator, and also as a painters scaffolding, as an elevator or lift in dwellinghouses for raising ashes from the cellar to the street, or for any other analogous purposes. It consists in the peculiar construction and arrangement of the hoisting devices and in means for extending horizontally from the place of hoisting and lowering any persons or goods which are not in the vertical line of the hoisting apparatus, as will be hereinafter more fully described, reference being had to the accompanying drawings, in Whl0l1 Figure l is a front elevation of the hoisting apparatus. Fig. 2 is a vertical section on line 2 2 of Fig. l, and Figs. 3, 4:, and 5 are details. V

In the drawings, 0 is a stiff rigid metal bar firmly attached to the wall of the building or other structure in vertical position by offsetting brackets C. This bar may either be smooth or be provided with cog-teeth, notches, or holes, as shown in our previous patent, No. 619,105, dated February 7, 1899. On this bar, which forms a slideway, there travels a block or framework A, to which is bolted a horizontal rail-section F, corresponding with horizontal stationary rail-sections G G and adapted to coincide in horizontal alinement with the same when hoisted. The horizontal rail-sections G are fixed in elevated positions at various levels, such as the different stories of a building or the vario us levels of a mine-shaft, so that a trolley carrying a ladder or carrying a basket, bucket, or other article may be hoisted along with the movable rail-section F to the horizontal alinement of any of the fixed rails G and the trolley with its load then run off from the movable rail-section F onto the stationary rails G to any desired point for taking persons from the windows of a burning building or the lowering or raising of goods of various kinds. As shown, we have illustrated a trolley T, carrying a suspended flexible ladder T.

The block or frame A is provided with guide wheels or rollers a a a a, which travel along the edges of the vertical bar 0, as shown in our former patent, and thus reduce friction and prevent all binding and cramping.

For raising and lowering the frame A and its rail F said frame is attached to one end of a cable B, which is made of wire when used for a fire-escape or for heavy lifting and which cable passes up in front of the bar 0 and over a pulley D above the top of the bar. This pulley is housed and journaled in a hood D,bolted orotherwise securelyanchored in the Wall near its top. From this pulley the other end of the cable descends behind the bar C to a pulley E, located at a convenient point below, and from which it proceeds to a suitable Windlass or drum. This pulley E is journaled in a right-angular frame whose vertical stem swivels in a vertical bearingin a bracket E and is retained there'- in by a nut e at its lower end. This bracket is securely fastened by. a long bolt e to the wall. This connection permits the pulley E to turn about a vertical axis to correspond with the run of the rope to the Windlass in whatever direction the same may be placed.

When the movable rail-section F is being raised, it is important to keep the trolley from running off the end of the same accidentally. To accomplish this object and also to secure proper horizontal alinement of the movable rail F with the stationary rails G, the ends of the movable rail are equipped as follows: A bar H, about equal in length to the Width of the rails F and G, is formed with a longer parallel leg 72 that slides through keepers or straps 72, h on the end of the bar F and has a helical spring h wound about it above" the bar and a head k on its lower end to prevent the spring from lifting the leg out of its keepers. This spring normally holds the device up above the level of the rail F, so that it forms a stop projection that prevents the trolley from passing oi the end of said rail. The bar H has a right-angular foot or stop It at its lower end on one side and another h at its top on the other side, \vhose functions are as follows: \Vhcn the rail F is raised to the level of the stationary rail G, the foot! h of bar H strikes the bottom of the stationary rail G and the bar H and leg 712 are forced down against the tension of the spring, compressing it until the stop h strikes the top of rail F, and when this occurs the top of the rail is not only exactly level with the top of stationary rail G, but the normal projection of H above the rail is automatically depressed, so that the trolley has a free and uninterrupted path to travel horizontally from the rail F onto the stationary rail G to any desired point.

We are aware that it is not broadly new in fire-escapes and other hoisting and lowering appliances to use a fixed elevated pulley and a cable passed around the same and connected at one end to the object to be hoisted and at the other end to a Windlass, and we make no claim to this broadly, but only to the special organization of these elements with the other parts of our hoisting apparatus.

Having thus described our invention, What we claim as new, and desire to secure by Letters Patent, is,

1. A hoisting apparatus comprising a vertical fixed bar forming a slideway, a frame with rollers guided on the same and having a rigidly-attached horizontal rail-section, a cable attached at one end to and supporting the said frame and rail-section, a fixed pulley at the upper end of said bar sustaining the cable a pulley arranged below said bar and receiving the cable, and a trolley mounted on said movable rail-section and movable longitudinally thereon substantially as described.

2. A hoisting apparatus comprising a vertical fixed bar forming a slideway, a frame with rollers guided on the same and having a rigidly-attached horizontal rail-section, a cable attached at one end to and supporting the said frame and rail-section, a fixed pulley at the upper end of the bar sustaining the cable, a pulley at thelower end of said bar for the cable, fixed horizontal rail-sections, and a trolley mounted on the movable rail and transferable to the fixed rails substantially as described.

3. The combination with two rail-sections, one stationary and the other movable and arranged to be brought into or out of alinement; of a bar II arranged on the end of the movable section and having stop projections h h, and a long leg 7L2 moving on guides on the end of the movable rail and a spring normally holding said bar Hin its elevated position substantially as described.

In testimony whereof We have signed our names to this specification in the presence of the subscribing Witnesses.

ROBERT WATSON. CHARLES EDWARD STEVENSON. \Vitnesses as to Robert Watson:

EVERARD BOLTON MARSHALL, F. W. HANAFORD.-

Witnesses as to C. E. Stevenson:

C. H. BARKER, C. II. HUVORTFELT. 

